JPS58165145A - Digital controller for graphic indication of character - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is applicable to documents in which a font in which the same character can take several graffiti forms, such as can be seen in documents written in Arabic script, is used. A single,! 0 concerning the digital control device for controlling the wi-form Qin indication or visual display of the font to be used.In classical Arabic, the same character comes in is* (left conjunction 廖會 or 罽字), in the middle of a word ( It takes several forms depending on the case, such as left and right conjunctive II or middle school), III ku ni kuru (right conjunctive or suffix), and written alone (single, singular). There is a basic same level of reproduction of Arabic sentences (rq yutto mark)
and some other orthographic symbols. The classical form of Arabic writing uses far more fonts than the Latin letters used in European countries.

The standard Arabic convention is to write only some consonants and long vowels, but not short vowels. As a result, the Arabic text lacks clarity and precision, and its interpretation is sloppy and ambiguous. Such ambiguity and ugliness contradict the content of technical literature and make it virtually impossible to translate technical terminology into standard Arabic.

The biggest unresolved problem at the same level is the reproduction of Arabic technical literature and the translation of humorous terminology into standard Arabic.

The solution of this same level is an indispensable element for the Arabian people to strive for the development of modern technology and to improve the technology of the upper countries.

The same layer (82) in Arabic text occurs when information is transmitted over an electrical communication line connecting terminals of an information system. 4. , to send Arabic fonts up to 10-11
bits, and a visual system with a high resolution that meets the needs of Arabic script applications, which increases the operating time, information processing time, and time required to input data into a storage device. It has become. Furthermore, it was not possible to link such Arabic text telecommunications systems with European information systems.

The first object of the present invention is to provide a device for quickly and accurately controlling the graphical display, that is, the visual display, of fonts based on the alphabetic rules of all typefaces currently in use, such as Arabic candy, from digital discrimination codes. It is about providing.

A second object of the invention is to provide an intelligible device for controlling a standard display unit in such a way as to enable faithful and direct visual display of scripts, such as Arabic script. Another object of the present invention is to provide a display control for an information terminal that allows documents written in Arabic or other scripts to be directly visualized from an information terminal compatible with standard information terminals, for example in Latin characters. The goal is to provide equipment.

The device of the present invention capable of achieving such goals consists of a character generator and a digital control. The character generation section contains basic page sef scenes that store codes for determining the basic font of characters and special forms of characters.

The digital control unit includes a first means for receiving and temporarily striping the character discrimination code, and a first state and a character for specifying a basic page set symbol in the character storage means according to the character discrimination hood. issuing 611. a first control signal causing a different shape to specify each supplementary page setting in the storage means; Supplementary part (-11-qS field) is added to the basic font of the character that is determined to belong to the basic page seven characters of the character storage means for the external graphic display means.
At least one II! to enable the addition of (final expletive (mail), connection line (Jmi! 輻-)). second logic means for generating a control signal; and third means for generating an address signal for the character storage means in response to a character discrimination code from the first means and a first control signal from the second logic means. Contains.

According to the invention, the digital control unit may be constructed as an independent unit suitable for connection to a character generation unit for excitation, such as character display or visualization means.

Next, a preferred embodiment of the device of the present invention will be described in Rabadal (]
[akhmr) The case where it is used to reproduce the Universal Standard Arabic Al7abetsu) 0OI)muR-υ font completed by Professor Professor will be described, but the present invention is not limited to such a font. The simplified alphabet uniformizes the edges of the Arabic fonts and reduces the number of fonts so that the Arabic alphabet corresponds to the Latin alphabet and is compatible with modern technologies such as printing and telegraphy. OODAI-g is shown on the right side of Table 2.

Table 2 also shows Latin characters, and further shows the binary discrimination code standardized for transmitting the fonts on the data line at the bottom and left.

In preferred embodiment II of the present invention described below,
Arabic letters are divided into two groups.

The first group includes characters that have a fixed form, in which the next character (that is, to the left of the first character) is a conjunctive Arabic letter, ml! The wrinkles continue,
If the next character is a non-connecting Arabic character or a non-letter symbol, then the terminal tail follows. Figures 1 to 1o show the first group of kudzu characters, ta (wo xun, jim θ1ll), respectively.
), an explanatory diagram of the aym 0 standard reward is shown. The three characters correspond to the character shown in Table 1 with the character number LL 18. The notation listed at the top of 1st to 1aWI indicates the character body shown in (4) and the connecting line shown in (1), and the notation listed at the bottom shows the character body (4) and the connection line shown in (1).
2 tails (φ is shown.

The lI2 Arabic character group has no regular form and has a special form with a number transition (for example, character 19 in Table 1).
24.2., I6) and lam (letter number 2
1) and A9 y (axtr) (letter number 1) are intersected and graphically combined to form a conjunction Lamoor aria.

According to the device of the invention, the 1h characters with punctuation marks are collected in the basic page section in the storage means of the character generator (a device known per se), and the other characters are
They are collected in supplementary pages sections that range from one to several pages.

Table 3 shows a typical configuration of the storage means of the present invention.

Section 0 contains Arabic numerals, Indian numerals, and some symbols, setacin I is the basic page setachine of the invention, and section ■ is a punctuation mark with a connecting line, special characters and concatenations A - 797! This is an example of the ttr supplementary page section.・Each letter in the basic page section corresponds to a separate format W:I-Code, but the binary standard code is advantageous for the alphabet OO1MTO υ. It is. When the discrimination code is received by the device of the present invention, the device processes the code and determines whether the number character only needs to be reproduced with modifications based on the basic font, or whether the system or the storage means has been modified. Decide whether to play using the special ySs on the foot page. Said fast running is equipped with the present invention,
1: Automatically based on the position of the character in the single and the adjacent characters in the single, ゛... word. Furthermore, the device of this embodiment i'-invention instantaneously stores and considers the successive four-letter code, and determines the correct form of each letter to be reproduced in the preceding sentence * (to the right of the considered character). ) and its line (determined based on the two characters (characters located to the left of the character under consideration).
The four characters recorded continuously are called past characters, present characters, future characters, and far future characters, respectively.

The configuration of one embodiment of the apparatus of the present invention will be explained based on FIG. 2. The device according to the invention is basically known per se.
It has a digital control which generates electrical signals to excite any display or display means, such as a 7x9 matrix display device. The control section includes a decoder (1), a displacement register # (2), and an identification logic circuit (3).
and a coupler (4). Inputs to this control can be provided, for example, by connection to a binary data line originating from a storage means or a key, or by means of a communication line capable of processing, e.g. □, connect to The discrimination code (am) of the character to be reproduced is constructed by known means in order to generate a category discrimination signal (20) indicating each category of characters discriminated based on the input basic address code (OB). The received decoder (1) successively receives the received data.

Some words written in Arabic script include words that are combined with adjacent letters and words that are not, and the Arabic writing also includes words called conjunctions (standard conjunctions such as Ram-Arya). Taking into account the presence of aggregations, in one embodiment of the invention the decoder (1) is configured to detect Arabic characters, Arabic characters without footprints, characters connected with adjacent characters, ram-arias, concatenations. Resignation Lamooria,
The apparatus is configured to generate a category discrimination signal indicating a character category such as a punctuation mark.

The continuous character category discrimination signal (work 0) is -υ, ring,
It is continuously introduced into a displacement register (2) having four stages of (1) and -. If 4 stages were introduced,
These four stages include category signals of past characters, present characters, future characters, and distant future characters from right to left.

The contents of the four stages of register (2) are determined by the identification logic circuit (
8) is added in parallel with the input.

The discriminating logic circuit constantly monitors the contents of the stage of register (2) and indicates the current character, that is, stage -vl-1 (goods).
It has the function of correctly displaying the characters identified in (on the stage of the register) based on the adjacent characters identified in the register. In particular, the logic circuit (8) is responsive to the contents of the registers (2), stages (2) and -, to generate three control signals to accurately determine the visual representation of the current character. It is configured. That is, the first signal (MO) indicating whether the basic address code (on) is to be modified or not.
A second terminal tail enable signal (MuT) that makes it possible to add a supplementary part (the terminal tail image is connection 11) to the regular body (see Figure 10) and the addition of a connecting line that combines with the segmentation mark. A third connection line enable signal (MuJ) is used to enable the connection.

The first signal (MO) has two states. The base address code of the current character is not modified, i.e. the base address code of the current character is the base page 7 xiron (Section I of Table 5).
), and a second state indicating that the basic address code of the current character is modified, i.e., that the current character belongs to the supplementary page section (section ■ in Table 3). be.

The identification logic circuit (II) in the present invention may be configured by appropriately configuring a logic circuit that is known per se, or may be configured so that the logic functions sufficient to realize the various functions required as described below can be changed. .

The first control signal (M(1) is combined with the basic address code (on) in payment 11(4) to form the final code (Ov) of the character to be displayed or reproduced. Basic address code (01) is delayed in the delay means (5) and then combined with the signal (MO).Delay means (6)
has 5 stages, and this number is a register, ! (2) Steps from the input to the current character discrimination stage,'
− Same as the number of stages. - In embodiments for two character groups, such as group 1 and group □ of Table 3, the logical combiner (4) responds to the signal (MO) and responds to the binary state of 1 bit F with code (01). It consists of a logic circuit that changes the code and thereby creates the final code (01) of the character to be reproduced. In a more general embodiment, a logical combination II (4) il, an elementary address hood (OB), and a binary 7-ohm control signal (MO) suitable for indicating any character in the supplementary page section as described above ) in a manner known per se.

When the signal (MO) is in the first state, the combiner (4) generates a final signal (Ov) which is identical to the basic address code. The instruction character is thus used as a modifier error display in the present invention (
The final code (01) indicates the basic font of the character, and the control signals (τ) and (J) control the supplementary parts on the figure. When the signal (MO) is in the second state 111, the combiner (4) generates a mod-end-code (01) which determines the special graphical representation of the character to be reproduced.

・'\ From the above explanation, it will be understood that the identification logic circuit (8) forms the core of the control device of the present invention. Furthermore, it is the function of the logic circuit to determine the correct reproduction of the current character (the character determined in the register (2) stage) based on the character determined in the stage -1-. In order to configure the said function, the logic circuit (8) is configured by registers (consecutive 4
The character category discrimination signal (10) is constantly monitored, and the third
The functional steps shown in Figures 7 and 7 in Figure 4 are carried out. The symbols used in FIGS. 3-4 are those commonly used for logic diadems. FIG. 4 is a 7p-chart in which the input and output points (indicated by circled letters) are the dividing points in the process of FIG.

Next, the symbols indicating each process in FIGS. 3 and 4 will be explained.

The logic circuit (8) is configured to make the next selection based on the category discrimination symbol occupying the stage of the register (2).

(100)! The current character (in the stage of register (2))) is an Arabic character (101) At the s stage -, check the signal belonging to the aria category α08) 1 Whether the current character is an aria! (103) g
The current character is not an aria αo01 future character (θOB to check the category, - of stage eidl> in register (2))! Is the unwritten character Arabic? αo6):
The future character is not Arabic ■ (xoJ) Is the current character a variable basic font character? (W→:1!l The current character is not a variable basic font (b) 1) Control signal (MO) of the 80 letter Transmission ■02): Transmission of enable signal (MUT) (300)! Sending the basic address code (01) (
10G)! The current character is a basic font variable character (mo
l) +1 state control signal transmission and (3@! Modified address code (01) transmission (110) !Future character is Arabic character (111) l stage (b)
811 the division mark category signal (IIJ): Whether the future character is a division mark! (113) s Future character is not a punctuation mark (114) Confirm l stage - RAM category signal (115): Whether the current character belongs to the RAM category! (116): The current character does not belong to the Ram category. (117) Check the division mark category (in Nistiji) (118): Is the current character a division mark? (no): The current character is not a division mark (11Ao) Check the connection category signal of i-stage Sakaki (121)! Is the current character connected? (1 frame: The current character is connected type rest 02); Transmission of enable signal (A'l') (1B3
)! Current character is not connected type (124): Check the category of past character (stage # of register (2)
4) (1g5): Is the past character an Arabic character? (1
, ga): The past characters are Arabic characters □,.

(lZ7) Check the variable font signal in Nishtiji (, to)・Is the past character a variable character?・K?7 (12
G) The i fault character is a variable character and is not ij (gol) r
sending a control signal (MO) in the o state, and (300)
: Send basic font address code (01) (130)
! The past character is a variable character (20υ: Sending a 1-state control signal (MO) (300)! Sending a modified address code (01) to select the supplementary page section (131)! The past character is not an Arabic character ( go
l): Send 1-state control signal (MO) (300)
s Send basic address code (01) (13g):
The current character is ram (1ss) in the t stage) to confirm the aria category signal (134)! Is the future character Aria? (13@)
rThe future character is not an aria: Continue from (11)) (136): The future character is an aria (J!01)
! Send 1-state control signal (MO) (137)! Check the category signal 1 (・1: ,・“′1.1, (138) !Whether the past character is an Anabia character? (1)
39) I past character is not an Arabic character (300)
s Sending modified address code (01) (140)
! The past characters are Arabic characters (141) Check the connected category signal in Nishtiji (14g)
: Is the past character connected? (143): The negligent character is not a connection type (300): Sending the corrected address code (07) (144): The past character is a connection type (J!03)! Enable signal (AT) t-send (soo) + send modified address code (01) (1
45) : Current character is a punctuation mark; Continue from (13?) (146) : Future character is a punctuation mark (14?) +
Check the category signal at stage 〇 (far future characters) (148): Is the far future character an Arabic character? (
149): Far-future scripts are not Arabic scripts: (1
Continue from 07) (150) j Far future characters are Arabic characters: (1
Continue from 2o) (151) + The current character is an aria (1ag) Check the ram category signal in Nistiji (goods) (past character) (153) s Is the past character a ram? α5 荀: The past character is not ram: Continue from (104) (ll$5) The past character is ram (201) +
1 state control signal (MO) transmission (300) t modification address hood (01 transmission) To illustrate the functionality of the device of the present invention, we will take the word "Islamic (III, AM) J" as an example; is usually written as follows in Arabic notation:

Said word has 6 letters (from right to left) i.e. 33.22.12.23.1 and 24 respectively in Table 1
It is obvious at a glance that the first and last characters of the word 0 consisting of the characters numbered are written alone, and the other four characters are connected to each other. It can further be seen that the fourth and fifth letters form the conjunction Ram Arya. As said 6-character basic code is accepted by the control device shown in FIG. Select the graphic@state of each character determined by the category signal. While performing this selection process, the identification logic circuit (8) detects the category signal α of each character. This detection process is shown below.

(&) The first Arabic character is not connected to the next character, so a blank space (a non-Arabic character) comes next. (b) The second and third Arabic characters are connected to each other. (0) The 4th character forms a conjunction with the 5th character and is connected to the 3rd character by a connecting line, ・α (d) The 5th character is followed by a blank space, (・) the 6th character For those characters preceded by a blank space and ending with I at the end, the identification logic circuit (3) successively generates the following control and enable signals.

1st character: Signal (MO) for generating the final code (01) indicating the basic page section of the character storage means 2nd character: Generating the final code (C1) indicating the basic page section of the character storage means (MO), and an enable signal (MUT) that allows the addition of the border 1IIIll as a supplement to the basic font. Third character: The lightest code (01) indicating the basic page section of the character storage means. A connection line is used to connect the signal (MO) for generation, the basic font of the third character, and the sentence ≠ that leads to '1'.

Enable signal (MuJ)...1゜4th character: Final signal indicating the supplementary page section in the character storage means to select the conjunction with the 5th character (temo aria). Signal (MO) for generating the code or modified address code (ol) 5th character: same as the 4th character 6th character: for generating the final code (ay) indicating the elementary page section in the storage means signal (MO), and an enable signal (MUT) that allows terminals to be connected as supplements to the basic glyphs. When adding a line, the transition is performed in the same way as in the case of the conjunction Lamoaria (whether the preceding character and the following character are conjunctive).

FIG. 5 is a schematic block diagram of one embodiment of the apparatus of the present invention. The identification logic circuit (8) includes a section (signal (LAT7' AR
), and numbers and the conventional symbols of section O in Table 3, a character generator comprising a section configured to generate Latin letters (controlled by the signal (LAT/AR)). ). In this embodiment, the coupler (4) in FIG. 2 is a simple logic circuit included in the output of a character generator), which responds to a one-state control signal (MO) and responds to a final address code (MO). 01) by changing the binary state of the basic font code (OB).

In addition to the embodiments described above, it will be obvious to those skilled in the art to use circuitry having the identification logic functions necessary to carry out the control process described above.

[Brief explanation of the drawing]

Figures 1 to 1a are schematic illustrations for explaining the modular components of Arabic characters displayed using the apparatus of the present invention, Figure 2 is a schematic block diagram of the apparatus of the present invention, and Figure 5 is a schematic block diagram of the apparatus of the present invention. FIG. 4 shows the sequence of steps shown in FIG. 3; FIG. 1 is a schematic block diagram of one embodiment; FIG. (Main symbols in the drawing) (1): Decoder (2): Displacement register (8): Identification logic circuit (4): Coupler (am) + basic address code (ay): Modified address code
゛(MO)! Control Signal Patent Applicant Toro σ;・, Tas Ni Rokutei-Midogou A I03

Claims (1)

[Scope of Claims] 1. A digital control for controlling the reproduction of each visual character constituting a word in a document in which the same character is typeprinted using several possible graphic forms. A first device for receiving and temporarily stocking the seven base pages containing codes for stratifying character bases, the special forms of characters, and the above-mentioned characters and discrimination codes. means, and a first state for specifying the seven basic pages in the character storage means and different states for specifying each of the supplementary pages in the character storage means according to the character discrimination code. at least one control signal for generating a first control signal for generating a first control signal for generating a first control signal for generating a first control signal for generating a first control signal for generating a first control signal for generating a first control signal for generating a plurality of characters; a second logic means for generating a second control signal; and a trump card for generating an address signal for the character storage means in response to a character discrimination code from the first means and a first control signal from the second logic means. A digital control device consisting of a digital control unit that meets the means. 2. The digital control unit includes a decoder means connected to receive and receive a character discrimination code and configured to output a category letter to one of the output lines of the value number. The decoder is connected to the output point of the means for temporarily stocking the character or gold and white category signal, and comprises at least one stage, and the second stage stores the current character category signal. shift register means including a first state and a first state for indicating a basic page section of the character storage means in response to the category signal; a first control signal having a variable state indicating each supplementary page section of the character storage means, and for controlling the addition of supplementary portions to the basic font of the characters to be reproduced; discriminating logic means for generating at least one second control signal; and receiving and receiving each character code at a first human power point and receiving and reproducing the first control signal from the discriminating logic means at a second human power point. 2. The apparatus according to claim 1, comprising logical combination means connected to □, 1B: for indicating an uppercase letter; 3. A control device for a character generator that excites a character display or visualization means, comprising a first means for receiving and temporarily marking a character discrimination code, and a basic page in the character storage means according to the character discrimination code. generating a first control signal for producing a first state for designating a section and a different state for designating each supplementary page section in the character storage means, and for an external dart ink display means, the base of the character storage means; a second logical means for increasing at least one second control quantity to enable the addition of a zero part to the basic font of a character marked W** as belonging to a page section; said character storage means, 4 in response to a first control value of `: from the first logic yIl ord and the second logic means;
1. generating an address signal for the target; 1. A control device that meets the wheels. 4. A decoder means which is connected so as to receive a character discrimination code and which is configured to print a kana-19-confucian quantity in one of the corner lines of a plurality of values, and a plurality of consecutive connected to the output of said decoder means for temporarily decoding the character or margin category signal and from at least three stages, the second stage receiving the current or character category signal; 7 registers, including means. All stages of the shift register include a first state and a first state for indicating a basic page section of the character storage means in response to a category signal, which is connected to the first state and the corresponding character. III with a different state indicating each supplementary page section of the storage means
S-logic means for generating a second control signal and for generating a second control signal for an extra-character display or visual means for controlling the addition of a foot to the basic font of the character to be reproduced; and receiving each character code at the first human power point and receiving the first control signal from the identification logic means at the second human power point;
4. Apparatus as claimed in claim 3, further comprising logical combination means connected to generate a final character address code which instructs the character storage means to indicate the character to be Itted.